The handlebar end plug is made of quality materials. Tighten the screw to make the plastic insert expand to plug the handlebar, so it fits most bike handlebars with inner diameter within 22 to 24 mm. It's easy to install and remove, ideal accessory for bike lovers. Features: 1. Made of quality aluminum alloy and premium plastic, lightweight, sturdy and . 2. Hard plastic made insert fits most bikes perfectly, anti-slip and firm. 3. Tighten the screw to make the plastic insert expand to plug the handlebar. 4. Easy to install and remove. 5. Ideal for bike lovers. Specifications: Materials: Aluminium Alloy & Plastic Color Options: Red; Green; Blue; Black; ; Silver; Gold Suitable for Handlebar Inner Diameter: Approx. 22 - 24 mm / 0.86 - 0.94 inch Weight: Approx. 40 g Package Included: 2 x Bike Handlebar End Plugs Only